161474244 has 24 divisors (see below), whose sum is σ = 378181440. Its totient is φ = 53623584.

The previous prime is 161474239. The next prime is 161474249. The reversal of 161474244 is 442474161.

It is an interprime number because it is at equal distance from previous prime (161474239) and next prime (161474249).

It is not an unprimeable number, because it can be changed into a prime (161474249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21784 + ... + 28239.

It is an arithmetic number, because the mean of its divisors is an integer number (15757560).

Almost surely, 2^161474244 is an apocalyptic number.

It is an amenable number.

161474244 is an abundant number, since it is smaller than the sum of its proper divisors (216707196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161474244 is a wasteful number, since it uses less digits than its factorization.

161474244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50299 (or 50297 counting only the distinct ones).

The product of its digits is 21504, while the sum is 33.

The square root of 161474244 is about 12707.2516304668. The cubic root of 161474244 is about 544.5458090627.

The spelling of 161474244 in words is "one hundred sixty-one million, four hundred seventy-four thousand, two hundred forty-four".